Self-oiling handle fob diestocks



UNITED sTATEs ROY V. NEWSHAM, 0I!"v SEATTLE, WASHINGTON.

SELF-OILING HANDLE FR DIESTOGKS.

Application tiled May 31,

To all `whom t may concern:

Be it known that I, RoiY V. NEwsHAM, a citizen of the United States, andresident of the city of Seattle, county of King, State of lVashin on,have invented certain new and useful mprovements in Self-Oiling Handlesfor Diestocks, of which the following is a specification.

My invention relates Ato a handle designed for application to such toolsas thread cutting diestocks, the purpose of which is to provide meanswhereby oil may be automatically applied to the cutting portions of thedie.

The object of my invention is to provide means for automatically oilingthe cutting parts of such tools, and `atthe saine time to pro`vide astora e capacity for enough oil to last fora consi erable time.

The features of my invention which I consider to be new and upon which Idesire to obtain patent will be hereinafter set forth and thenparticularly defined in the claims.

In tl e accompanying drawin I have shown til fer to use.

Figure 1 showsa diestock having one of my handles applied thereto, thehandle being shown in section.

Fig. 2 shows the same handle with the parts in the position which theywould assume if reversed in position.

Fig. 3 shows an edge View of a diestock having my invention appliedthereto, with the central portion thereof in section.

Fi 4; shows a transverse section through.

the andle u on the plane ofthe broken lines 4-4 of 'g. 1.'

Fi 5 is a longitudinal section throuh a hand e having a constructionwhich d' ers nly in detail from that Shown in the other In the cuttn ofthreads upon a pipe it is desirable that 51e dies be supplied with 011steadilly, and at all times when they are in use. o secure this, Wherethe oil must be applied by hand by means of an ordinary 011 can, isdiilicult, as the use of the oil Aas frequently as may be desired isimprobable. At the same `time when used it is used'in excess. I have,therefore, sought to provide means whereby one of the handles may beused as a reservoir for storing oil, and other means whereby this oilmay e conducted. to the cutting parts of the die and be supplied inregular measured quantities to the die.

Specification of Letters Patent.

e form of construction w ich I prer Patented Apr.13, 1920.

1819. Serial No. 300,805.

The means which I prefer to employi are those shown, and which will nowbe described.

The handle 1 may, in its general exterior condition, resemble anordinary handle. At its outer end it is provided with a removable cap orplug 2. Its inner end is threaded into the central body 3 of thediestock. In this latter respect it is' similar to the ordinary handle.It is evident that if this handle be filled with oil it will constitutean oil storage reservoir of considerable capacity. The inner'end of thisreservoir is provide with means whereby the oil contained thereiu may bedelivered to the die. Such means as herein shown consist of the pipe 30.For convenience of installation this pipe employs a section 31.-, whichenters the inner end of the handle 1, and a section 32, which islaterally bent, so that its inner discharge end terminates closelyalongside of the inner face of the die 33. For convenience ofinstallation I also employ aunion coupling, as is indicated at 34.

lWithin the inner end ofthe handle, 1 is placed a plug 4, which isprovided witha central bore, into one end of which the section 31 of theoil delivering pipe is screwed. In the other end of the plug 4 is a borewhich is connected with the bore into which l the pi e 31 is'screwed.This forms a cylin der wllich co crates with a piston for the forcingout o a measuredquantity of oil. This plngl is secured in place byhaving the .end faces of the handle l'engaging with ledges or fianges 40which extend about the same. A non-leaking joint issecured byinterposing a washer, as 41, of any Soft material between the end of thelu 4 and the* $5 bottom of the bore, into'whic t e handle 41 isinserted.

lWithin the oil storage chamber is placed o: bar 5, which is adapted byits weight, to act as the force for operating the pump. To one end ofthis is secured an vextension 50, which is of a reduced size to enterthe boreflQ, which is formed in the inner end of the pl ug 4. The bar 5is preferably made of a trlangular cross section, as is shown in Fig. 4,,so that it may move freely within the handle, and the oil may flow fromone side thereof to the other, freel At the Same time this bar may thusbe eld fairly well centered within the'handle. 'The plug 2, which closesthe outer end of the handle 1, 1s provided with a central axial bore,into which is threaded stein (5() of a regulating hutton or cylinder (3.The, onter end of the plug,r 2 is hored or reoesaed to receive thehntton 6 and the inner end of the stem is provhled with a ring or stop(il, which will prevent its beingr screwed out ward farther thandesired, and will also furnish an enlarged head for engagement with theouter end ol the har 5.

By adjustingrthe button n in or out7 which may he. done hy turning it,the length of stroke of the bar :7 may he controlled. Ily screwing thisin a suflicient distance, the re moval of the inner end of the reducedstem Bil from the liorc l2 formed in the plug,y maybe prevented. ln thisevent the action of the device for pumping oil is neutralized. This mayhe done when it is desired to pnt the oil Supply device out ol' use., aswhen thc tool is to he laid away for any length of time. VBy properlyadjnstiini,r the lnulon (L the free. iow ol oil into thc c vlindcr 15.)may also he controlled to a certain extent.

ln thc forni ol' device Shown in lligj. .3, the har occupiesA the inncrportion ol thc handle l and the threaded .stein (30 c\tcnds inward amuch greater lenggjth than in thcy construction shown inligs. l and LvThe construction shown in Figs. l and J is preferreih as the piston har5 occupiesy the outer portion of the handle and the oil does not have toflow past the saine in order to reach the pump cylinder, that is, thebore in the plug member 4,

ln operation, the har 5 will he reciprooated if the handle bar isbrought to a ver-p tical position. It will thus he moved to ward theouter end of the handle when thisA har is at the lower sident the stock,and will he moved inward to discharge oil when this handle is placedupward from the stock, The oil discharge will be deposited directly uponthe surface of the pipe and upon the side face of the die. ln eitherevent it will be at the point Where it is most needed. ln Consequence, alesser amount of oil will he required and a more thorough oiling of thethreads being out will be secured.

What I claim as my invention is:

1 An automatic oiling deiioe' for diestoeks and like tools, comprising ahollow l handle adapted to serve as an oil storage reservoir, a closurefor the inner end of this handle having an oil pump cylinder,y adelivery pp'e connecting said cylinder with the point where the o1l isto be used and ay Weight free to move by gravity within said handle andhaving a tip forming a piston adapted to enter thc pnnip cylinder toexpel its contents, and ineana` For adjnstahly controllingr the lengthof' stroke ol' the pump piston.

2. n automatic oiling dcvicc l'or diestoeks and like tools, comprising ahollow handle adapted to serve as an oil :storage res ervoir, a closureigor thcy inner end of this handle having" an oil pnnip cylinder` adelivery pipe connecting;r said cylindcr with the. point where the oilis to he used and a weight i'ree to move hy gravity within said handl)land havintgr a tip forming` a pistou adapted to enter the pump cylinderto expel. its contents`r and an adjustable rod entering the outer cudolE the. handle and adapted to engage the weight to control and limitits Stroke.

il. An automatic oiling device' for diestocks and like toolscoxnprirdnpr a hollow handle adapted to serve as' an oil `storagereservoir, a closure for thc inner end ol' lhirC handle hai-inl;lr anoil pump cylinder. a delivery pipe conm-cling lHai/l cylinder with thcpoint whcrc thc oil is to lic usf-d and a weight llec 1o niovc hygravitv within said handle and having a tip forming a piston adapted tuenter the piuup cylinder to expel its contents'. a plug scre\\'in; rinto the outer end of the handle and havin'rr its outer end recessed, anadjusting' holt threaded into and passing through said plug' and adaptedto engage the outer end of the pump operatimgr weight, said holt havinga head which may enter the recess in said plug.

i. ln an automatic oiling device for die stocks and like tools:q thecombination with a stock havin 0' a handle receiving socket providedwith a hase opening` a packing' washer seated within the socket, ahollow ha dle adapted to serve as an oil storage. reservoir and havingits inner end threaded into said socket, a closure for this: end of thehandle having; an oil pump p vlinder` and provided with a rounded outerend and a peripheral flange engageahle hy the inner end olf the handleto press said rounded end against said 'Washer to prevent lea hagothrough said socket opening, a delivery pipe leading` from the pumpcylinder to a point where the oil is to the used and a weight free tomove bv gravity within said handle havingr a tip forming a pistonadapted to enter the pump piston to expel its contents.

Signed at Seattle, lVashin,,ton` this 21st day of May, 1919, i i

ROY V. N EWSHAM.

